Preheat the oven to 180ºC . In a large mixing bowl, combine all the dry ingredients and set aside. In a small saucepan, reduce the port over medium heat to quarter cup. Cool to room temperature. Add the port and remaining ingredients, except the blueberries, to the dry mixture, one at a time, stirring constantly, until combined and smooth. Gently fold in the blueberries. Lightly spray or wipe a 7 x 28 cm glass baking pan with vegetable oil. Pour the batter into the pan with and bake for 45 minutes, or until a toothpick inserted in the center comes out clean. Serve warm from the oven or cool to room temperature. Cal. 196, Carb. 37g, Protein 3g, Chol. 12mg, Fat 4g/18% *